70 lines
1.9 KiB
Go
70 lines
1.9 KiB
Go
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package sqlite3
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import (
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"context"
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"github.com/c9s/rockhopper/v2"
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)
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func init() {
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AddMigration("main", up_main_tradesIndexFix, down_main_tradesIndexFix)
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}
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func up_main_tradesIndexFix(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
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// This code is executed when the migration is applied.
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_, err = tx.ExecContext(ctx, "DROP INDEX IF EXISTS trades_symbol;")
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if err != nil {
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return err
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}
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_, err = tx.ExecContext(ctx, "DROP INDEX IF EXISTS trades_symbol_fee_currency;")
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if err != nil {
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return err
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}
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_, err = tx.ExecContext(ctx, "DROP INDEX IF EXISTS trades_traded_at_symbol;")
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if err != nil {
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return err
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}
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_, err = tx.ExecContext(ctx, "CREATE INDEX trades_symbol ON trades (exchange, symbol);")
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if err != nil {
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return err
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}
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_, err = tx.ExecContext(ctx, "CREATE INDEX trades_symbol_fee_currency ON trades (exchange, symbol, fee_currency, traded_at);")
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if err != nil {
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return err
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}
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_, err = tx.ExecContext(ctx, "CREATE INDEX trades_traded_at_symbol ON trades (exchange, traded_at, symbol);")
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if err != nil {
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return err
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}
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return err
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}
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func down_main_tradesIndexFix(ctx context.Context, tx rockhopper.SQLExecutor) (err error) {
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// This code is executed when the migration is rolled back.
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_, err = tx.ExecContext(ctx, "DROP INDEX IF EXISTS trades_symbol;")
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if err != nil {
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return err
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}
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_, err = tx.ExecContext(ctx, "DROP INDEX IF EXISTS trades_symbol_fee_currency;")
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if err != nil {
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return err
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}
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_, err = tx.ExecContext(ctx, "DROP INDEX IF EXISTS trades_traded_at_symbol;")
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if err != nil {
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return err
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}
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_, err = tx.ExecContext(ctx, "CREATE INDEX trades_symbol ON trades (symbol);")
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if err != nil {
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return err
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}
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_, err = tx.ExecContext(ctx, "CREATE INDEX trades_symbol_fee_currency ON trades (symbol, fee_currency, traded_at);")
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if err != nil {
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return err
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}
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_, err = tx.ExecContext(ctx, "CREATE INDEX trades_traded_at_symbol ON trades (traded_at, symbol);")
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if err != nil {
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return err
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}
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return err
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}
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